need pump suggestion

[tabndust]

im looking for a pump or suggestion on a pump. it will be used as a closed loop on my 300g. tank is mostly softies and lps

i prefer it to be quiet and low power consumption.

the tank isnt drilled for the imput or output and its not an option. so it will have to be over the top.

the pump will sit behind or under the tank, it is about 5 ft from the floor to the top of tank.